25430959 has 4 divisors (see below), whose sum is σ = 25514104. Its totient is φ = 25347816.

The previous prime is 25430957. The next prime is 25430971. The reversal of 25430959 is 95903452.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25430959 - 2¹ = 25430957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25430953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41112 + ... + 41725.

It is an arithmetic number, because the mean of its divisors is an integer number (6378526).

Almost surely, 2^25430959 is an apocalyptic number.

25430959 is a deficient number, since it is larger than the sum of its proper divisors (83145).

25430959 is an equidigital number, since it uses as much as digits as its factorization.

25430959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83144.

The product of its (nonzero) digits is 48600, while the sum is 37.

The square root of 25430959 is about 5042.9117581017. The cubic root of 25430959 is about 294.0723864213.

It can be divided in two parts, 254 and 30959, that added together give a palindrome (31213).

The spelling of 25430959 in words is "twenty-five million, four hundred thirty thousand, nine hundred fifty-nine".